Apparatus for producing aerated beverages.



No. 720,719. I PATENTED FEB. 17 1903. P. E. MALMSTROM.

APPARATUS FOR PRODUCING AERATED BEVERAGES.

APPLICATION FILED SEPT. 1, 1899. RENEWED FEB. 24, 1902.

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APPARATUS FOR PRODUCING AERATED BEVERAGES.

APPLICATION FILED SEPT. 1, 1899. RENEWED FEB. 24, 1902.

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UNITED STATES PATENT OFFICE.

PETER MALMSTROM, OF NEW YORK, N. Y., ASSIGNOR TO JOHN MULHOLLAND, OF NEWYORK, N. Y.

APPARATUS FORPRODUCING AERATED BEVERAGES.

EZPECIFIOATION forming part of Letters Patent No. 7 0,719, datedFebruary 17, 1903.

Application filed September 1, 1899. Renewed February 24:, 1902. SerialNo. 95,283. (No model.)

To all whom, it pea/y c0ncern.-.

Be it known that I, PETER E. ll/IALMSTROM, a citizen of the UnitedStates, residing in the city of New York, borough of Manhattan, countyand State of New York, have invented certain new and useful Improvementsin Apparatus for Producing'Aerated Beverages, of which the following isa specification.

Myinvention relates toapparatuses for commingling liquid with gas forthe production of aerated or carbonated waters or beverages; and theprincipal object of the invention is to provide improved means toregulate and control the mixing of the gas and liquid through the mediumof the pressure of the gas that is being commingled with liquid. To thisend I provide a gas-holder and a pump, each of which is to be connectedwith a receptacle to be charged, and the pump is operated by an electricmotor, the current for which is controlled by electrically-operatingdevices that are caused to act by a circuitcontroller that is operatedby the pressure of the gas to be commingled with water forced into saidreceptacle by the pump. In this connection I utilize a switch in thecircuit of the motor and provide magnets to actuate the switch, and thecircuit for each magnet is controlled by con tacts, which are made andbroken by devices which are embraced in a gas-pressure-indicating gage,the arrangement being such that when the gas-pressure reaches apredetermined point the circuitcontrolling devices will operate theswitch to close the circuit of the motor, and when the gas-pressurerises above or falls below definite points the switch will be thrown tobreak the current from the motor, and thus stop the pumping.

The invention also consists in the novel details of improvement, thatwill be more fully hereinafter set forth and then pointed out in theclaims.

Reference is to be had to the accompanying drawings, forming parthereof, wherein-- Figure 1 is a diagrammatic'view of an apparatusembodying my invention. Figs. 2 and 3 are enlarged detail face views ofthe combined gage and circuit-controller, the dial being removed. Fig. 4is a face view of the same, showing the dial and pointer; and Fig.

5 is a vertical cross-section on the plane of the line 5 5 in Fig. 4.

Similar numerals of reference indicate corresponding parts in theseveral views.

A suitable pump is indicated at 1 and a gas-holder at2, both of whichare connected with a receptacle or carbonator 2 in which liquid is to beaerated or carbonated in the well-known mannerof pumping liquid into avessel containingcarbonic-acid gas.

3 is a suitable electric motor to operate pump 1, being shown connectedto the pitman 1 of the pump bya crank 3 The condnctors 4, 5, 6, and 7for the circuit of the motor may connect with any suitable source ofelectrical energy, and in said circuit is a switch having a contact 8,shown connected with conductor 5, and an arm 9, adapted to engagecontact 8 and shown connected with conductor 6. The switch 9 may besubstan tially in the form of a dead armature, adapted to be alternatelyattracted by magnets 10 and 11 to make and break the circuit of themotor. By preference I utilize the current of the motor-circuit toenergize the magnets 10 and 1,1, and for this purpose I have shown oneterminal of each magnet connected with conductor 5, as by wires 12 13.

The circuit of each magnet 10 11 is controlled by contacts connectedwith a gas-pressure gage 14, that is in communication with thegas-holder 2, preferably through a reducing-valve 2, all arranged inwell-known manner. The arrangements I have shown for this purpose are asfollows: Within the casing of the gage 14 is an expansible tube 15,adapted to receive gas, and it is connected by a link 16 with apivotally-supported segmental rack 17, that meshes with a pinion 18,carried by a shaft 19, journaled in the casing and having a pointer orhand 20, adapted to sweep over a dial 21. The parts of the gage abovedescribed are of well-known construction; but any other suitable gagecan be used. To the shaft 19 is connected a contact or metal pin 22,being shown carried by a metal support or disk 23, secured to shaft 19,so that the contact 22 will oscillate or travel in an are around shaft19, corresponding to the movements of pointer 20, through the action ofthe gas-pressure. The contact 22 is adapted to engage contacts 24 25 26,that are carried by but insulated from the casing of the gage, and bymeans of these contacts the circuit of magnets 10 and 11 is made andbroken at the proper times. The conductors 6 and 7 are in electricalconnection with gage 14 through the medium of a binding-post 7 carriedby the latter, whereby current from the circuit of the motor is taken tooperate magnets 10 and 11. At each side of contact 22, secured onsupport 23, I preferably place insulation 22 22 in such po sition as tocause the contact-springs 24 25 26 to snap into quick engagement withcontact 22 to prevent sparking, as the movement of contact 22 under theaction of gas-pressure may be quite slow. The contact 25 is electricallyconnected with a conductor 27, that leads from a terminal of magnet 10to a binding-post 28, carried by and insulated from the gage, contact 25being connected with post 28, as by a conductor 29.

From the foregoing it will be understood that when switch 9 is in theposition shown in dotted lines in Fig. 1 and contact 22 engages contact25 (through the action of the gas pressure in the gage) circuit will beclosed through magnet 10 from conductor 7 through post 7 and the gagemechanism to contact 22, thence through 25 29 28 27, magnet 10,conductors 12 13 5, motor 3, and conductor4 back to conductor 7 throughthe generator. Magnet 10 will now cause switch 9 to close circuit at 8,whereupon circuit for the motor will be established from 7through 6, 9,l0, 5, 3, and 4, whereupon pump 1 will be operated.

The contacts 24 and 26 are utilized to close a circuit through magnet 11when the gaspressure in holder 2 falls below or rises abovepredetermined points, and for this purpose magnet 11 is electricallyconnected with contact 26, as by a conductor 30, leading to a binding:post 31, carried by and insulated from gage 14, said post being shownconnected by a conductor 32 with contact 26, and the contact 24 is alsoelectrically connected with magnet 11, being shown connected with abinding-post 33, carried by and insulated from gage 14, from which posta conductor 34 leads to post 31 or wire 30, or it could lead direct tomagnet 11.

From the foregoing it will be understood that when contact 22 engagescontact 26 (owing to high gas-pressure) circuit for magnet 11 to causeswitch 9 to break the circuit of the motor will be as follows: from7through 7 and the gage to contact 22, thence to 26 through 32 31 30,magnets 11, 12, and 13, to conductor 5, and thence through the bin backto 7, whereupon switch 9 will be operated by magnet 11 to break themotor-circuit. Likewise when the gas-pressure falls to a certain lowpoint contact 22 will engage contact 24, whereupon circuit for magnet11, for the purpose before stated, will be established as follows: from7 to 7 and through the gage to contact 22, thence through 24, 33, 34,31, and

30 to magnet 11, and thence to the bin, as described for contact 26.

The complete operation of aerating or carbonating liquid in connectionwith my improvements may be described as follows: The gas-holder 2 andpump 1 are connected with the receptacle or carbonator to be charged,circuit is open at 8 9, and the gas is turned on. As soon as the pointer20 indicates a predetermined pressure-say one hundred poundscontact 22will have reached contact 25, (but in passing contact 24 will have madeno change in the motor-oircuit,) whereupon circuit for magnet 10 will beclosed,and thereupon switch 9 will be drawn into engagement with contact8, thus closing the circuit of the motor, which will actuate the pump 1to force water into the carbonator. If the pressure in the gage 14should rise above a predetermined point-say one hundred and fiftypoundscontact 22 will be moved into engagement with contact 26, thusclosing the circuit of magnet 11, and switch 9 will move to break themotor-circuit at 8 9 to stop the motor, which will remain stopped untilthe pressure in gage 14 falls sufficiently to enable contacts 22 and 25to again engage. Should the pressure in gage 14 after the motor startsfall to a predetermined low pointsay fifty pounds-contact 22 will engagecontact 24 to close the circuit of magnet 11 to break the circuit of themotor,which will remain stopped until the pressure again rises to thepredetermined starting-point. From this it will be apparent that themotor starts only when the gas-pressure in the gage reaches a determinedpoint, that the motor stops when the pressure exceeds or falls belowdefinite points, and that the motor after once starting will continue tooperate the pump at all gas-pressures between the determined high andlow points.

The location of the contacts 24 and 26 relatively to the path in whichcontact 22 oscillates determines the pressures required to cause magnet11 to operate the switch, and the location of contact 25 determines thepressure at which contacts 22 and 25 will close circuit for magnet 10 tocause the motor to start. Thus the pumping of liquid into the presenceof gas is automatically controlled at predetermined high and lowpressures of said gas, and the pumping operation is not started until apredetermined gas-pressure has been reached; but it is evident that, ifdesired, switch 9 or any other switch in the motor-circuit can bemanually operated to start or stop the motor at any desiredgas-pressure.

One of the advantages of my invention is that the carbonating operationcan proceed without requiring close attendance by an operator and theresulting product will be that which is desired.

It is evident that if the contact 24 or 26 were dispensed with the motorwould continue to operate at any pressure either below or above thepredetermined starting pressure respectively, but I prefer to use bothof said contacts and their circuits; but I do not limit my invention tothe details of construction and the arrangement shown and described, asthey may be varied without departing from the spirit thereof, and itwill be evident that the described arrangement of contacts and circuitconnections can be varied and also that the circuits of magnets 10 and11 could be provided with means for energizing the magnets instead ofutilizing the current from the motor-circuit.

Having now described my invention, what I claim is- 1. In a carbonatingapparatus, a gasholder, a liquid-supply pump, and electrical means fordriving said pump, a carbonator connected to said gas-holder and pump, aswitch provided with magnetic actuating devices, and meansautomaticallycontrolled by the pressure in said gas-holder for energizing either ofsaid magnetic devices, thereby controlling the operation of said pump,substantially as described.

2. In a carbonating apparatus, a gasholder, a liquid-supply pump, and anelectric motor for driving said pump, a carbonator connected to saidgas-holder and pump, a switch connected in the circuit of said motor,switch-operating magnets, a pressuregage connected to said gas-tank andmeans carried by said pressuregage for automatically causing either ofsaid magnets to be energized, whereby said motor-circuit is completed orbroken, substantially as described.

3. The combination of a pump and a gasholder, both adapted to beconnected with a carbonator, with an electric motor to operate the pump,a gas-pressure gage connected with the gas-holder, a switch in thecircuit of the motor, a magnet to operate the switch, one terminal ofthe magnet being connected with the motor-circuit, the other terminal ofthe magnet being connected with a contact carried by the gage, and meansto be operated by gas-pressure in the gage to close the circuit of themagnet through another part of the motor-circuit, substantially asdescribed.

4. The combination of a pump and a gasholder, both adapted to beconnected with a carbonator, with an electric motor to operate the pump,a gas-pressure gage connected with the gas-holder, a switch in thecircuit of the motor, a magnet to operate the switch, one terminal ofthe magnet being connected with the motor-circuit and the other terminalbeing connected with a contact carried by the gage, a part of themotor-circuit being connected with the gage, a contact in circuit withthe gage, and means for operating said contact to cause it to close thecircuit of the magnet, substantially as described.

5. The combination of a pump and a gasholder, both adapted to beconnected with a carbonator, with an electric motor to operate the pump,a gas-pressure gage connected with the gas-holder, a switch in thecircuit of the motor, apair of magnets to operate the switch, contactscarried by the gage in the circuits of the magnets, and means to beoperated by gas-pressure in the gage to close the circuit of eithermagnet according to the gas-pressure, substantially as described.

6. The combination of a pump and a gasholder, both adapted to beconnected with a carbonator, with an electric motor to operate the pump,a gas-pressure gage connected with the gas-holder, a switch in thecircuit of the motor, the circuit of the motorleading to the gage, apair of magnets to operate the switch, the circuits of the magnetsleading from the motor-circuit to separate contacts in the gage, and 'acontact to be operated by gas-pressure in the gage to close the circuitof either magnet through its contact by different gas-pressures in thegage, substantially as described.

7. The combination of a pump and a gasholder, both adapted to beconnected with a carbonator, with an electric motor to operate the pump,a gas-pressure gage connected with the gas-holder, a switch in thecircuit of the motor, a pair of magnets to operate the switch, a contactin the circuit of one magnet, a pair of contacts in the circuit of theother magnet and located on opposite sides of the first-mentionedcontact, and means operated by gaspressure in the gage for closing themagnetcircuit th rough either contact according to the gas-pressure,substantially as described.

8. The combinationofapump, agas-holder,

a carbonator and a motor, with a pressuregage having a contact carriedwithin the casing behind the dial adapted to be operated bygas-pressure, and a pair of contacts Within the casing extending intothe path of the firstmentioned contacts, said contacts serving tocontrol the circuit of the motor, substantially as described. 9. Thecombination ofapump, agas-holder, a carbonator and a motor with apressuregage having a contact to be operated by gaspressure andinsulation in'proximity to said contact on opposite sides thereof, and apair of contacts extending into the path of the first-mentioned contactand the insulation, whereby the second-mentioned contacts will be causedto snap into engagement with the first-mentioned contacts in eitherdirection of movement of the latter, said contacts serving to controlthe circuit of the motor, substantially as described.

10. In a carbonating apparatus, a gasholder, a liquid-supply pump, acarbonator connected to said gas-holder and said pump, an electric motoroperating said pump, a switch in the motor-circuit, a pressure-gageconnected to said gas-holder, a rotating shaft within saidpressure-gage, an electrical contact upon said shaft, and stationarycontacts within said gage adapted to register with said moving contact,whereby said motor is automatically started, stopped or regulated by thepressure of the gas in said holder, substantially as described.

11. In a carbonating apparatus, a gasholder, a liquid-supply pump, acarbonator connected to said gas-holder and said pump, an electric motoroperating said pump, a switch in the motor-circuit,electrically-operated means for operating said switch, a pres--sure-gage connected to said gas-holder, a rotatable shaft within saidpressure-gage, an electrical contact upon said shaft, and stationarycontacts within said gage adapted to register with said moving contactfor completing the circuit through said electrically-operated means forsaid switch, substantially as described.

13. In a carbonating apparatus, a gasholder, a liquid-supply pump, acarbonator connected to said gas-holder and said pump, an electric motordriving said pump, a switch in the motor-circuit, magnets forautomatically opening and closing said switch, a pressure-gage connectedto said gas-holder, and

means carried by said pressure-gage for energizing said magnets foropening or closing said switch, substantially as described.

14. In a carbonating apparatus, a gasholder, a liquid-supply pump, acarbonator connected to said gas-holder and said pump, an electric motorfor driving said pump, a switch in the motor-circuit, magnets forautomatically opening and closing said switch, a pressure-gage connectedto said gas-holder, a rotatable shaft within said pressure-gage, anelectrical contact upon said shaft, and stationary contacts within saidgage adapted to register with said moving contact for completingcircuits through said magnets for opening or closing said switch,substantially as described.

15. In a carbonating apparatus, a gasholder, a liquid-supply pump, andelectrical means for driving said pump, and a carbonator connected tosaid gas-holder and pump; of a pump-controller consisting of apressuretube connected to said gas-holder, a contactarm mechanicallyconnected therewith, a high-pressure contact located on one side of thesaid arm, a low-pressure contact located on the other side of said arm,and means electrically connected with said contacts for antomaticallyopening and closing the circuit through said pump-driving mechanism.

16. In a carbonating apparatus, a gasholder,aliquid-supply pump,electrical means for driving said pump, and a carbonator connected tosaid gas-holder and pump; of a circuit-controller consisting of apressure-tube,

an insulating-link connected to the closed end of said tube, a segmentconnected to the other end of said link, a contact-arm operated by saidsegment, an adjustable contact located upon each side of saidcontact-arm, and electrically-operated means connected to saidelectrical contacts adapted to open and close the circuit through saidpump-operating mechanism.

17. In a carbonating apparatus, a gasholder,a liquid-supplypump,electrical means for driving said pump, and a carbonator connected tosaid gas-holder and pump; of a circuit-controller for said pumpmechanism consisting of a pressure-actuated means, an insulating memberconnected therewith, an electrical contact mechanically connected to thesaid insulating member, an adjustable contact located upon each side ofsaid firstnamed contacts, and an electrically-actuated switch connectedin circuit with said contacts adapted to open and close the circuitthrough the pump-operating mechanism upon the rise and fall of thepressure in said gasholder within predetermined limits.

18. In a carbonating apparatus, a gasholder, a liquid-supply pump, anelectric motor for driving said pump, a carbonator connected to saidgas-holder and pump, and a magnetically-actuated switch in circuit withsaid pump; of a pressure-tube connected to said gas-holder, a swingingarm connected to said tube, electrical contacts located upon each sideof said arm, and electrical connections between said magnetic switch andsaid electrical contacts whereby the operation of said pump iscontrolled.

19. In a carbonating apparatus, a gasholder, a liquid-supply pump, amotor for driving said pump, a carbouator connected to said gas-holderand pump, and a magnetically-operated switch in said motor-circuit; of acircular pressure-tube connected to said gas-holder, a link connectedthereto, a pivoted arm adjustably connected to the said link, a contactmoved by said pivoted arm, a carbon contact-piece located upon each sideof said movable contact, and electrical connections between said carboncontacts and said magnetically-operated switch.

20. In an aerating apparatus, the combination of a pump-controllerconsisting of a pressure-actuated means, a circuit-controllermechanically connected therewith, an adjustable high-pressure-limitingdevice located on one side of the said circuit-controller, an adjustablelow-pressure-limiting device located on the other side of the saidcircuit-controller, and springs for supporting the said limitingdevices.

Signed in the city, county, and State of New York this 31st day ofAugust, 1899.

PETER E. MALMSTROM.

Witnesses:

JOSEPH L. LEVY, SERENA B. KUHN.

